Output Signal (Do) Forced Output - Mitsubishi Electric MR-J4-10A(-RJ) Instruction Manual

4. STARTUP

4.5.8 Output signal (DO) forced output

Output signals can be switched on/off forcibly independently of the servo status. This function is used for
output signal wiring check, etc. This operation must be performed in the servo off state by turning off the
SON (Servo-on).
Operation
Call the display screen shown after power-on. Using the "MODE" button, show the diagnostic screen.
CN1
14
(Note)
Note. This is used with MR-J4-_A_-RJ servo amplifiers with software version B3 or later.
POINT
When the servo system is used in a vertical lift application, turning on MBR
(Electromagnetic brake interlock) by the DO forced output after assigning it to
connector CN1 will release the electromagnetic brake, causing a drop. Take
drop preventive measures on the machine side.
CN1 CN1 CN1 CN1 CN1 CN1
13 33 48 22 25
(Note)
Press the "UP" button three times.
Press the "SET" button for 2 s or more.
...... Switch on/off the signal below the lit segment.
Always lit (The leftmost digit is always lit only for MR-J4-_A_
-RJ servo amplifiers with software version B3 or later.)
...... Indicates on/off of output signal. Definitions of
on/off are the same as those for the external I/O
signals. (Light on: on, light off: off)
CN1 CN1
23 24 49
Press the "MODE" button once.
...... The lit LED moves to the upper LED of CN1-24.
Press the "UP" button once.
...... CN1-24 switches on.
(Between CN1-24 and DOCOM are connected.)
Press the "DOWN" button once.
...... CN1-24 switches off.
Press the "SET" button for 2 s or more.
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